Tsaesci Dragon Priest

Magic Resistance. The Tsaesci has advantage on saving throws against spells and other magical effects.

Apostle of Darkness. While in dim light or darkness, the Tsaesci has the following benefits:

• +1 to AC
• +1 to Attack rolls
• +1 to Saving throws
• Regenerate 1d8+7 HP at the start of a turn.
  

Arcane Ward. You can weave magic around yourself for protection. When the Tsaesci casts an Abjuration spell of 1st level or higher he can simultaneously use a strand of the spell's magic to create a magical ward on himself that lasts until he finishes a long rest. The ward has a hit point maximum equal to twice his CR + his Charisma modifier. Whenever he takes damage, the ward takes damage first. If this damage reduces the ward to 0 hit points, he takes the remaining damage. While the ward is at 0 hit points it can't absorb damage but its magic remains. Whenever a new abjuration spell of 1st level or higher is cast the ward regains a number of hit points equal to twice the level of the spell.

Spellcasting. The Tsaesci is a 7th-level spellcaster. Their spellcasting ability is Charisma (spell save DC 15, spell attack +7). They know the following spells:

• Cantrips (At Will): Eldritch Blast, Frostbite, Guidance, Poison Spray, Shape Water
• 1st-Level (4 slots): Armor of Agathys, Arms of Mora, Beast Bond (Snakes Only), Divine Favor, Frost Fingers, Inflict Wounds, Shield, Speak with Animals (Snakes Only)
• 2nd-Level (3 slots): Beast Sense (Snakes Only), Blur, Hold Person, Misty Step, Shadow Blade, Summon Beast
• 3rd-Level (3 slots): Counterspell, Hunger of Mora, Hypnotic Pattern, Spirit Guardians, Water Breathing, Water Walk
• 4th-Level (1 slot): Confusion, Control Water, Dominate Beast

Multiattack. The tsaesci makes two attack actions per turn.

Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 11 (1d8 + 5) slashing damage plus 2 (1d4) cold damage.

FO KRAH DIIN (Recharge, 5-6).

As an action, you speak the words of this shout. Any creature within a 30 ft. cone of the caster must make a Constitution saving throw. On a failed save, affected targets take 4d8 cold damage. On a successful save, half as much damage.

KRII LUN AUS (Recharge, 5-6).

As an action, you speak the words of this shout. You must pick a target. That target must make a Wisdom saving throw. On a failed save, the target is marked for death for 1 minute. They take 2d8 necrotic damage. Each turn after, they take another 2d8 necrotic damage for the duration of the effect. On a successful save, there is no effect.